Question

The heat capacity per mole of water is
a) 9R b)5R c)9/2 R d) 6 R

Answer 1

$\mathbb{\red{\huge{HEY\:MATE}}}$

The heat capacity per mole of water is $\bold{{6\:R}}$

Answer 2

Answer:

9R

Explanation:

We treat water like a solic. For each atom average energy is 3kt

Water molecule has three atoms, two hydrogen and one oxygen. The total energy of one mole of water is

U=3×3kt ×N (N=Avogadro number)

=9Rt

heat capacity per mole of water is

U/t=9Rt/t=9R